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Harmony and tranquility, tenets of the allure of Thailand, condensed into a single wellness destination.


It's time to escape from the stress of modern life, and enter a world of wellness.

Many travel to Thailand to find oneself, but at The Siam, this is a given. At the Opium Spa, mere moments from your suite, you enter a veritable world of wellness that is unseen and unheard of in Bangkok. Discreet, elegant, and effortless in every manner, one leaves Opium one step closer to becoming an entirely new person after each visit.

Riverside Wellness

Situated in the heart of The Siam’s elegantly designed grounds, this is much more than a spa – with access to the river, as well as an outdoor infinity pool, you’ll find that spending time in and out of the spa will do your wellness journey wonders.

Curated For You

Steeped in natural ingredients and practices, the Opium Spa features Sodashi therapies and spa products that enrich and enlighten, as well as nurture and brighten. This continued commitment to wellness goes even further, with an on-site hair and nail salon to perfect every element of your self-care journey – from top to toe.

The Favourite for Fitness Fanatics

A fully equipped space with the state-of-the-art gym technology litters The Siam’s fitness offering, with personal training upon request to ensure your goals are achieved – even when you’re relaxing. And in a Bangkok-first, The Siam features the first ever fully equipped luxury Muay Thai facility, enriching your fitness levels to a new height of authenticity.

A Memory To Behold

In a world first, the opening of a specially consecrated space devoted to the inking of sacred tattoos marks a new direction for authentic Thai experiences. As you are guided through this sacred process with a translator, The Siam’s Sak Yant tattoo master precisely applies this millennia-old practice to you – leaving behind an unforgettable, unique, and ubiquitous tattoo that is solely your own.

Your New Path

Facilitated by an in-house wellness doctor, The Siam offers a series of wellness programmes that are curated to meet your needs. From yoga and meditation to Ayurveda, Reiki, and Tai Chi, each programme is entirely customised to suit your journey the best way possible – whether as an individual, a group, or even a budding therapist yourself.